CNPS Inventory Plant Detail

Alopecurus aequalis var. sonomensis

Common Name:	Sonoma alopecurus
Family:	Poaceae
Synonyms:
Element Code:	PMPOA07012
Full Name:	Alopecurus aequalis Sobol. var. sonomensis Rubtzoff
USDA PLANTS Symbol:	ALAES

Biology
Lifeform: perennial herb Blooming Period: May - July Habitat: • Marshes and swamps (freshwater) • Riparian scrub

Rarity Status

CA Rare Plant Rank: 1B.1
Rare, threatened, or endangered in California and elsewhere
.1: Seriously endangered in California
Federal Listing Status: FE
Endangered (10/22/97)
State Listing Status:
Not Listed
State Rank: S1
S1: Critically Imperiled.
Global Rank: G5T1Q
T1: Critically Imperiled. G5: (species) Secure, considering populations outside California.
(There are taxonomic questions associated with this name)

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 22
Element Occurrence Ranks:

A B C D X U

1 2 3 0 1 15

Population Status:

Historic >20 yrs	Recent <=20 yrs
15	7

Presence:

Present Extant	Possibly Extirpated	Extirpated
21	0	1

Notes

Two occurrences introduced in 1987 (485C, 485D), but both appear to have failed as of 1993. Historical localities need field surveys. Threatened by cattle trampling, wetland habitat loss, and non-native plants. See A. aequalis in The Jepson Manual.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1974-01-01
Last Update: 2010-03-15

Location

Elevation: 5 - 365 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Marin (MRN), Sonoma (SON)

Quads: name (DWR code) USGS code
Bolinas (467B) 37122H6, Drakes Bay (485C) 38122A8, Inverness (485D) 38122A7, Kenwood (501A) 38122D5, Sebastopol (502A) 38122D7, Camp Meeker (502B) 38122D8, Two Rock (502D) 38122C7, Duncans Mills (503A) 38123D1

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-122.75,38.25